IEEE Antennas and Wireless Propagation Letters最新文献_第9页

Compact Dual-Band Filtering Antenna With Wide Stopband Characteristics Using Proximity-Coupled Feeding at 28 GHz and 38 GHz 在 28 千兆赫和 38 千兆赫频率上使用近距离耦合馈电技术实现具有宽截止频带特性的紧凑型双频滤波天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-27 DOI: 10.1109/LAWP.2024.3523535

Geon Park;Sirous Bahrami;Bumhyun Kim;Jeonghyo Lee;Dongseop Lee;Wonbin Hong

{"title":"Compact Dual-Band Filtering Antenna With Wide Stopband Characteristics Using Proximity-Coupled Feeding at 28 GHz and 38 GHz","authors":"Geon Park;Sirous Bahrami;Bumhyun Kim;Jeonghyo Lee;Dongseop Lee;Wonbin Hong","doi":"10.1109/LAWP.2024.3523535","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3523535","url":null,"abstract":"A new class of via-less dual-band wide-stopband filtering antenna is proposed. The proposed topology is based on a stacked patch antenna structure, which is excited using a proximity-coupled line. The antenna structure is composed of a square patch, capacitive parasitic elements, radiating parasitic elements, and a parallel strip line (PSL). To maintain compactness, the proposed antenna design utilizes multifunctional capacitive parasitic elements. These elements radiate at 28 GHz and generate two radiation nulls at 31.5 GHz and 55.5 GHz for interference suppression. To improve the selectivity and out-of-band rejection performance of the filtering antenna, additional nulls are introduced via the PSL and parasitic elements. Prototypes of a single element and a 1 × 4 antenna array are fabricated and measured for validation. The measured results of the single element confirm a −10 dB impedance bandwidth of 27.8 GHz to 29.7 GHz and 37.2 GHz to 39.7 GHz. The realized gain is ascertained to be 6.32 dBi and 5.66 dBi at 28 GHz and 38 GHz, respectively. The suppression levels between the operating frequency bands and upper stopband are better than −18.4 dB and −17.4 dB, respectively. The measured 1 × 4 antenna array achieves a peak gain of 9.8 dBi at 28 GHz and 10.8 dBi at 38 GHz, respectively.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 4","pages":"988-992"},"PeriodicalIF":3.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoupling of Tightly Placed Square Patch Antenna Pairs With Different Performances by a Simple and Compact Structure 用简单紧凑的结构解耦不同性能的方形贴片天线对

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3523392

Qianwen Liu;Lei Zhu;Wen-Jun Lu;Gang Zhang

{"title":"Decoupling of Tightly Placed Square Patch Antenna Pairs With Different Performances by a Simple and Compact Structure","authors":"Qianwen Liu;Lei Zhu;Wen-Jun Lu;Gang Zhang","doi":"10.1109/LAWP.2024.3523392","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3523392","url":null,"abstract":"In this letter, a simple and compact decoupling structure is presented, which is embedded at the center of the antenna pair without the demand of extra space. It is composed of only one small metal pad and one via hole, and its working mechanism is clearly explained with resorting to the equivalent circuit model. The metal pad works with the patches to function as the parallel plate capacitors, while the via hole can be modeled as an inductor. The circuit analysis reveals that the transmission zero can be produced with the proposed decoupling structure. On this basis, one square patch antenna pair with 0° polarization, as well as two 45° polarized antenna pairs operating with single and dual resonant modes, respectively, are constructed. These three design examples demonstrate that the proposed decoupling structure is equipped with its powerful ability in strong-coupling suppression and is available for antenna pairs with different polarizations and resonant performances. The measured results of the 45° polarized dual-mode antenna pair indicate that an impedance bandwidth of 6% is realized with the low profile of 0.0325 free-space wavelength (<italic>λ0), while the isolation is remarkably enhanced from 4.5 dB to 20.0 dB within the passband with the edge-to-edge spacing of 1.5 mm (0.015<italic>λ0) and center-to-center spacing of 32.5 mm (0.325<italic>λ0).","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 4","pages":"968-972"},"PeriodicalIF":3.7,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Self-Calibration O/X-Mode Separation Method for Ionosonde 电离探空仪的自校准O/ x模式分离方法

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3522886

Haotian Hu;Tongxin Liu;Guobin Yang;Chongzhe Lao;Chunhua Jiang

引用次数: 0

Design of Linear Polarization-Adjustable Spherical Array Antenna 线性极化可调球形阵列天线的设计

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3523067

Xing Chen;Shixing Yu;Na Kou

引用次数: 0

A Fast Method for Predicting Radio Waves Propagation Over Rough Sea Surfaces 一种预测无线电波在波涛汹涌海面上传播的快速方法

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3523423

Pengcheng Zhao;Lixin Guo;Zhongyu Liu

引用次数: 0

Efficient Analytical Design Strategy for High-Gain Nonresonant Partially-Reflective-Surface Antennas 高增益非谐振部分反射表面天线的高效解析设计策略

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3521031

Xiaodong Zheng;Yuehe Ge;Guowei Li;Ziheng Zhou;Ladislau Matekovits;Zhizhang Chen

{"title":"Efficient Analytical Design Strategy for High-Gain Nonresonant Partially-Reflective-Surface Antennas","authors":"Xiaodong Zheng;Yuehe Ge;Guowei Li;Ziheng Zhou;Ladislau Matekovits;Zhizhang Chen","doi":"10.1109/LAWP.2024.3521031","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3521031","url":null,"abstract":"Nonresonant partially-reflective-surface (PRS) antennas (PRSAs) offer high-gain performance, but their design typically requires extensive electromagnetic simulations to obtain near-field phase distributions, leading to time-consuming processes, especially for complex or large antennas. This letter presents a novel analytical design method that significantly simplifies the design of phase-correcting surfaces (PCSs) for nonresonant PRSAs. By introducing a new design strategy based on a ray-tracing approach, we derive a set of analytical formulas for two PCS configurations: one utilizing a single superstrate that integrates both PRS and PCS functionalities, and another employing distinct PRS and PCS layers. Using these formulas, we designed two non resonant PRSAs, and both simulated and experimental results demonstrate comparable gain performance to those obtained using Ansys HFSS. This approach reduces the dependence on computationally intensive simulations, offering a more efficient pathway for the design of high-performance nonresonant PRSAs, thereby advancing the accessibility and practicality of antenna design methodologies.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 4","pages":"898-902"},"PeriodicalIF":3.7,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time-Efficient Higher-Order PML Using Bilinear Transform Without Altering Standard FDTD Formulas 使用双线性变换而不改变标准FDTD公式的高效高阶PML

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-26 DOI: 10.1109/LAWP.2024.3522353

Kun-Lai Li;Yongliang Zhang;Zhengpeng Wang

{"title":"Time-Efficient Higher-Order PML Using Bilinear Transform Without Altering Standard FDTD Formulas","authors":"Kun-Lai Li;Yongliang Zhang;Zhengpeng Wang","doi":"10.1109/LAWP.2024.3522353","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3522353","url":null,"abstract":"This letter proposes an efficient higher-order (HO) perfectly matched layer (PML) algorithm based on the bilinear transform (BT) method for truncating finite-difference time-domain (FDTD) lattices. By rearranging the PML tensors, the resulting update formulas become a combination of standard FDTD formulas and PML auxiliary variables, ensuring that the PML implementation does not alter the standard FDTD formulas. This approach makes the proposed HO-PML algorithm completely independent of the update formulas in the host computational domain at the code level, earning it the name BT-HO-iPML. Additionally, a memory-reducing algorithm is developed by splitting the HO difference equations according to each time step and applied to the BT-HO-iPML. Furthermore, to maintain consistency throughout the computational domain, the BT method is also applied to discretize the constitutive relation equation between electric flux density D and the electric field intensity E, which is characterized by simplicity of derivation and can model general media. Theoretical analysis and numerical simulations demonstrate that the BT-HO-iPML has the advantages of being time-saving and universal while having good broadband absorption performance.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 4","pages":"948-952"},"PeriodicalIF":3.7,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Efficiency Metalens Antenna Design Through a ControlNet Diffusion Generation Model 通过控制网络扩散生成模型设计高效金属天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-25 DOI: 10.1109/LAWP.2024.3522289

Ruonan Chen;Cedric W. L. Lee;Peng Khiang Tan;Rajbala Solanki;Theng Huat Gan

{"title":"High-Efficiency Metalens Antenna Design Through a ControlNet Diffusion Generation Model","authors":"Ruonan Chen;Cedric W. L. Lee;Peng Khiang Tan;Rajbala Solanki;Theng Huat Gan","doi":"10.1109/LAWP.2024.3522289","DOIUrl":"https://doi.org/10.1109/LAWP.2024.3522289","url":null,"abstract":"In this letter, we propose a ControlNet stable diffusion-based method for the inverse design of a high efficiency metalens antenna. This marks the first application of a text and image fine-tuning generative deep-learning model in metalens design, offering high design freedom with more diversity and precise control. The design process involves dataset generation, electromagnetic simulation, feature encoding, training, unit cell generation, and metalens design. The generated unit cells demonstrate a phase range of 290<inline-formula><tex-math>$^{circ }$</tex-math></inline-formula> and high transmission magnitudes over 0.88, with 66% exceeding 0.95. A three-layer metalens antenna with an f/D ratio of 0.5, formed using the generated unit cells and a feeding horn, achieves a gain of 28.1 dBi and an efficiency of 51.4%, nearing the theoretical limit of 63.7%, and maintains minimal side-lobe levels of −22.3 dB and −22.7 dB in the <inline-formula><tex-math>$phi =0^circ$</tex-math></inline-formula> and <inline-formula><tex-math>$phi =90^circ$</tex-math></inline-formula> planes.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 4","pages":"938-942"},"PeriodicalIF":3.7,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Modified Compact UWB Directional Bow-Tie Antenna for Underwater GPR 一种用于水下探地雷达的改进型超宽带定向领结天线

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-25 DOI: 10.1109/LAWP.2024.3522321

Jisheng Tong;Jianjian Huo;Jun Luo;Cheng Guo;Qing Zhao;Yong-Xin Guo

引用次数: 0

On Analytical Solution of Channel Spatial Correlation for Efficient MIMO OTA Testing 高效MIMO OTA测试中信道空间相关的解析解

IF 3.7 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-25 DOI: 10.1109/LAWP.2024.3522241

Changsheng Zhao;Heng Wang;Lei Tian;Yuxiang Zhang;Zhenyun Hu;Xiaohang Yang;Jianhua Zhang

引用次数: 0